GIMP for Mac

Fine brush pixelation problems

Installation and Mac OS specific issues.

Fine brush pixelation problems

Postby MrSnotblock » Tue Sep 27, 2011 12:22 pm

Hello,
I am a newbie to this forum even though I have used GIMP for a few years, but only on a PC running Ubuntu Linux. I had no problems till I changed to a Mac and now I cannot get a fine line without a lot of coarse pixelation/spatter on the 1 - 5 pixel wide round and fuzzy brushes. This is a problem as I use GIMP for illustration, mostly fine pencil and watercolour effects.
I recently upgraded from an old MacBook to a Mac mini running Lion, but the problem is still there.
Does anybody have any suggestions?
Many thanks :alien:
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Re: Fine brush pixelation problems

Postby Rod » Tue Sep 27, 2011 6:03 pm

Did you check to make sure Jitter wasn't enabled?(brush tool options dialog)
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Re: Fine brush pixelation problems

Postby MrSnotblock » Wed Sep 28, 2011 12:24 pm

No it's not enabled. :question:

Thanks for your reply Rod
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Re: Fine brush pixelation problems

Postby Arzoroc » Thu Sep 29, 2011 10:18 am

Hm .. I cannot really follow your description, can you add a screenshot of your problem? This makes things easier for us I guess.
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Re: Fine brush pixelation problems

Postby MrSnotblock » Mon Oct 03, 2011 10:04 am

Hm .. I cannot really follow your description, can you add a screenshot of your problem? This makes things easier for us I guess.


Thanks Arzorock and Rod. I believe I have solved the problem and the answer is embarrassingly obvious if I had thought harder about it in the first place. I used to work with huge picture sizes and move things around, usually I couldn't see a lot of what I had drawn. Of course, when you zoom in on any area of such a canvas at 200% or even 400% you still have a lot of pixels to play with.

I just remembered this, as I have been working with smaller pictures, rarely larger than 1000 x 700.

I worked it out with a downloaded painting by Tissot "On the Thames", that is only about 700 x 1000 in size. When you zoom in the dreaded pixellation is there too. I've tried to upload part of the painting that I "vandalised" along with this post.

D'Oh!!! I should have seen this. Sorry to waste your time. 8O
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